Motor base having overflow-proof capability

ABSTRACT

A motor base has a body, a motor mount, a filter mount, a through hole, a passage, a flange, and at least one overflow hole. The motor mount is formed on the top surface of the body. The filter mount is formed on the bottom surface of the body. The through hole is defined through the body. The flange is formed on the bottom surface of the body and is arranged around the filter mount. The at least one overflow hole is defined radially through the flange.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a motor base, and more particularly toa motor base having an overflow-proof capability.

2. Description of Related Art

With reference to FIGS. 7 and 8, a submerged motor 70 is mounted on atank 80 with a conventional motor base 60 and is applied to draw cuttingoil or cooling oil from the tank 80 to a machine. The amount of the oilin the tank 80 will reduce after a period of use and new oil has to beadded into the tank 80. However, the tank 80 of the conventional motorbase 60 does not have any overflow-proof structure. When the addedamount of the oil is over the volume of the tank 80, the excess oil willflow into the motor 70. At this time, if the motor 70 is turned on, themotor 70 is easily burned out.

To overcome the shortcomings, the present invention tends to provide amotor base to mitigate or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the invention is to provide a motor base having anoverflow-proof capability to prevent a motor from burning out.

The motor base has a body, a motor mount, a filter mount, a throughhole, a passage, a flange, and at least one overflow hole. The body hasa top surface and a bottom surface being opposite the top surface. Themotor mount is annular and is formed on and protruding from the topsurface of the body. The filter mount is annular, is formed on andprotruding from the bottom surface of the body, and is coaxial with themotor mount. The through hole is defined through the body at centers ofthe motor mount and the filter mount. The passage is inverted L-shaped,is defined in the body, and has a first end at the bottom surface of thebody and a second end at a side of the body. The flange is formed on andprotrudes from the bottom surface of the body and is arranged around thefilter mount. The at least one overflow hole is defined radially throughthe flange.

Other objects, advantages and novel features of the invention willbecome more apparent from the following detailed description when takenin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a motor base in accordance with thepresent invention;

FIG. 2 is another perspective view of the motor base in FIG. 1;

FIG. 3 is a perspective view of a submerged motor with the motor base inFIG. 1;

FIG. 4 is a side view in partial section of the submerged motor with themotor base in FIG. 3, shown mounted on a tank;

FIG. 5 is an enlarged side view in partial section of the submergedmotor with the motor base in FIG. 4;

FIG. 6 is an enlarged operational side view in partial section of thesubmerged motor with the motor base in FIG. 4;

FIG. 7 is a side view in partial section of a submerged motor mounted ona tank with a conventional motor base; and

FIG. 8 is an enlarged operational side view in partial section of thesubmerged motor with the conventional motor base in FIG. 7.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENT

With reference to FIG. 1, a motor base 10 in accordance with the presentinvention comprises a body 12, a motor mount 14, a filter mount 16, athrough hole 15, a passage 17, a flange 18, and at least one overflowhole 182.

The body 12 has a top surface and a bottom surface being opposite thetop surface. Preferably, the body 12 is square in shape. The motor mount14 is annular and is formed on and protrudes from the top surface of thebody 12. The filter mount 16 is annular, is formed on and protrudes fromthe bottom surface of the body 12, and is coaxial with the motor mount14. The through hole 15 is defined through the body 12 at centers of themotor mount 14 and the filter mount 16, so the through hole 15 iscoaxial with the motor mount 14 and the filter mount 16. The passage 17is inverted L-shaped, is defined in the body 12, and has a first end atthe bottom surface of the body 12 and a second end at a side of the body12. The flange 18 is annular, is formed on and protrudes from the bottomsurface of the body 12, and is arranged around the filter mount 16.Preferably, the flange 18 is formed on and around the periphery of thebody 12. The at least one overflow hole 182 is defined radially throughthe flange. Preferably, the at least one overflow hole 182 isimplemented as two in amount. When the body 12 is square in shape, thetwo overflow holes 182 are located at positions correspondingrespectively to two opposite sides of the square body 12.

In use, with reference to FIGS. 4 and 5, a motor 20 is mounted on themotor mount 14, and the shaft of the motor 20 extends through thethrough hole 15 and protrudes from the bottom surface of the body 12. Atubular filter 30 is attached to the filter mount 16 and is mountedaround the shaft. Accordingly, the motor 20 can be securely mounted on atop of a tank 40 by the motor base 10. Oil in the tank 40 can be drawnby the motor 20 to pass through the filter 30 and the passage 17 andguided to a machine by a hose 50 connected with the second end of thepassage 17.

When the level of the oil in the tank 40 is lowered, new oil is addedinto the tank 40. With reference to FIG. 6, when the tank 40 is fullyfilled with oil, the redundant oil will flow out of the overflow holes182 in the flange 18. At this time, the user can be notified to stopadding oil. In addition, the oil can be prevented from flowing into themotor 20 via the through hole 15, so the motor 20 can be kept fromburning out. Therefore, the useful life of the motor 20 can beprolonged, and the safety of using the motor 20 can be improved.

Even though numerous characteristics and advantages of the presentinvention have been set forth in the foregoing description, togetherwith details of the structure and function of the invention, thedisclosure is illustrative only, and changes may be made in detail,especially in matters of shape, size, and arrangement of parts withinthe principles of the invention to the full extent indicated by thebroad general meaning of the terms in which the appended claims areexpressed.

What is claimed is:
 1. A motor base comprising: a body having a topsurface; and a bottom surface being opposite the top surface; an annularmotor mount formed on and protruding from the top surface of the body;an annular filter mount formed on and protruding from the bottom surfaceof the body and being coaxial with the motor mount; a through holedefined through the body at centers of the motor mount and the filtermount; an inverted L-shaped passage defined in the body and having afirst end at the bottom surface of the body and a second end at a sideof the body; a flange formed on and protruding from the bottom surfaceof the body and arranged around the filter mount; and at least oneoverflow hole defined radially through the flange.
 2. The motor base asclaimed in claim 1, wherein the body has a periphery; and the flange isformed on and around the periphery of the body.
 3. The motor base asclaimed in claim 2, wherein the body is square in shape; the at leastone overflow hole is implemented as two in amount; and the two overflowholes are located at positions corresponding respectively to twoopposite sides of the square body.
 4. The motor base as claimed in claim1, wherein the body is square in shape; the at least one overflow holeis implemented as two in amount; and the two overflow holes are locatedat positions corresponding respectively to two opposite sides of thesquare body.